Yes, not a bad idea. It could be done by adding 4 holes per cathead and using one pair of existing holes or a whole new set would work as well.Should drill a second set of holes 120* apart, for hexagonal work.
Got me with this one! What is it used for?
pete
YESOk got it now.
So to set the square bar to run true you need to centre the tube in the rest then adjust the bar inside the tube?
pete
I've always called the 'spiders'.